Home / 879,592.21-1,213,777.79-487,096.96

Finding the Fourth Proportional to 879,592.21, 1,213,777.79 and 487,096.96

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Solution

The fourth proportional to 879,592.21, 1,213,777.79 and 487,096.96 is: 672,160.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,592.21 : 1,213,777.79 = 487,096.96 : x
  2. Step 2: Convert to fraction form
    879,592.21/1,213,777.79 = 487,096.96/x
  3. Step 3: Cross multiply
    879,592.21x = 1,213,777.79 × 487,096.96
  4. Step 4: Simplify right side
    879,592.21x = 591,227,463,766.45
  5. Step 5: Solve for x
    x = 591,227,463,766.45/879,592.21
  6. Step 6: Final answer
    x = 672,160.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.